package SimpleDateFormat;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Scanner;

/**
 * @author NUOSEN
 */
public class Main {
    public static void main(String[] args) {
        String startDate = "2000-12-04";

        Scanner scanner = new Scanner(System.in);

        String input = scanner.nextLine();

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");

        try {
            Date sDate = simpleDateFormat.parse(startDate);
            Date eDate = simpleDateFormat.parse(input);

            long gapTime = eDate.getTime() - sDate.getTime();
            gapTime = gapTime / 1000 / 3600 / 24 + 1;
            String res = gapTime % 5 <= 3 ? "打渔":"晒网";
            System.out.println(res);

        } catch (ParseException e) {
            System.out.println(e.getMessage());
        }
    }
}
